Short parking debacle- again

The short stay (20 minutes) free parking is a nice idea. It gives you just enough time to perform a well timed pick-up or drop-off. I have used it often. It is not unusual to find the exits not working properly or taking very long. Today is not the first time that I have been timely and yet unable to get out for a long period. About five minutes today. The man on duty could see the excessive delay but insisted we should still pay, even though we had been in good time. The person behind the help button was equally adamant. This experience turns an otherwise pleasant experience into a bitter experience. I am sure there are many others who have been on the receiving end of this kind of bad service from ACSA. PS. ACSA should consider the courtesy of responding to their reviewers.